<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title> </title>
	<script type="text/javascript">
		var json = {a: 1, b:100, c:function (){
			alert(this.b)
		}}

		json.c();		//100
	</script>
</head>
<body>
	
</body>
</html>